i just test drove the b350 ricky tims special edition. the stitches are great, but the extension table is too flimsy/ not supported well, and the knee lifter is too short for my leg to reach it. also, if the bobbin runs out while in the middle of the project, you cannot remove the extension table without taking your project out of the throat. it is possible to change the bobbin without removing the table, but it is not convenient to do so with the table in the way. hth